There is a wideband, multiband ham antenna that comet makes that is pretty robust, and gives amazing recieve on pretty much every useful band that you'd normally scan.
Really good on VHF and UHF commercial and public safety, and brings in 800 well.
60 buck antenna from the antenna farm, but every now and again i see it used online on amazon or a ham site.
Comet CA-2x4SR
You can get it as an NMO (Hole mount or body mount) or get it as a pl-259 mount and use any of the cherokee specific cb antenna mounts and put it on the side of the body.
I'm currently running one on the fender using one of the hood bolts on my silverado, and its an excellent performer for the scanner, picking up both VHF and the 800 p25 system quite well.